I've done some digging into this before, and come up empty handed, so I'll ask here. I have a series of three PowerConnect2724's running the backbone of my network. (I also have a smattering of small 5-port switches because the building is wired like shit, but I digress.) Each of these PS2724's connects to a Sonicwall TZ205N via Port 01. (Switch A from Port1 to SW Port 1, Switch B Port 1 to SW Port 2, etc) I have noticed, over time, that the Port 1 on the switches will report drop events.
The number and frequency varies, as I stopped tracking them between reboots for a good while, but they always appear at some point. Each switch gets them on its Port 1, plus on various ports that run to the workstations. They vary, and the counters reset every power cycle. Sometimes it's on the same workstation port, sometimes a different one.
I...